eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/featuretree/SelectFeatureTreeWizardPage.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10
  11 package eu.etaxonomy.taxeditor.featuretree;
  12
  13 import java.util.List;
  14
  15 import org.eclipse.core.commands.ExecutionException;
  16 import org.eclipse.jface.viewers.ISelectionChangedListener;
  17 import org.eclipse.jface.viewers.IStructuredSelection;
  18 import org.eclipse.jface.viewers.ListViewer;
  19 import org.eclipse.jface.viewers.SelectionChangedEvent;
  20 import org.eclipse.jface.viewers.StructuredSelection;
  21 import org.eclipse.jface.wizard.WizardPage;
  22 import org.eclipse.swt.SWT;
  23 import org.eclipse.swt.events.ModifyEvent;
  24 import org.eclipse.swt.events.ModifyListener;
  25 import org.eclipse.swt.events.SelectionAdapter;
  26 import org.eclipse.swt.events.SelectionEvent;
  27 import org.eclipse.swt.layout.GridData;
  28 import org.eclipse.swt.layout.GridLayout;
  29 import org.eclipse.swt.widgets.Button;
  30 import org.eclipse.swt.widgets.Composite;
  31 import org.eclipse.swt.widgets.Label;
  32 import org.eclipse.swt.widgets.Text;
  33
  34 import eu.etaxonomy.cdm.api.service.IFeatureTreeService;
  35 import eu.etaxonomy.cdm.api.service.exception.DataChangeNoRollbackException;
  36 import eu.etaxonomy.cdm.model.description.FeatureTree;
  37 import eu.etaxonomy.taxeditor.store.CdmStore;
  38 import eu.etaxonomy.taxeditor.store.StoreUtil;
  39
  40 /**
  41  * <p>SelectFeatureTreeWizardPage class.</p>
  42  *
  43  * @author n.hoffmann
  44  * @created Aug 5, 2010
  45  * @version 1.0
  46  */
  47 public class SelectFeatureTreeWizardPage extends WizardPage implements ISelectionChangedListener, ModifyListener{
  48
  49         private ListViewer viewer;
  50         private Text text_title;
  51         private Button button_add;
  52         private Button button_remove;
  53
  54         /**
  55          * <p>Constructor for SelectFeatureTreeWizardPage.</p>
  56          *
  57          * @param pageName a {@link java.lang.String} object.
  58          */
  59         protected SelectFeatureTreeWizardPage(String pageName) {
  60                 super(pageName);
  61                 setMessage("Select a Feature Tree or create a new one.");
  62         }
  63
  64         /* (non-Javadoc)
  65          * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
  66          */
  67         /** {@inheritDoc} */
  68         @Override
  69         public void createControl(Composite parent) {
  70                 Composite composite = new Composite(parent, SWT.NULL);
  71
  72                 composite.setLayout(new GridLayout());
  73
  74                 Composite composite_treeContent = new Composite(composite, SWT.NULL);
  75                 composite_treeContent.setLayoutData(new GridData(SWT.FILL, SWT.FILL,
  76                                 true, true));
  77                 composite_treeContent.setLayout(new GridLayout(2, false));
  78
  79                 viewer = new ListViewer(composite_treeContent);
  80                 viewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  81
  82                 button_remove = new Button(composite_treeContent, SWT.PUSH);
  83                 button_remove.setText("Remove");
  84                 button_remove.setLayoutData(new GridData(SWT.RIGHT, SWT.TOP, false, false));
  85
  86                 Composite composite_treeTitle = new Composite(composite, SWT.NULL);
  87                 composite_treeTitle.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true,
  88                                 false));
  89                 composite_treeTitle.setLayout(new GridLayout(3, false));
  90
  91
  92
  93                 Label label_title = new Label(composite_treeTitle, SWT.NULL);
  94                 label_title.setText("New Feature Tree");
  95
  96                 text_title = new Text(composite_treeTitle, SWT.NULL);
  97                 text_title.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
  98
  99                 button_add = new Button(composite_treeTitle, SWT.PUSH);
 100                 button_add.setText("Add");
 101
 102                 viewer.setContentProvider(new FeatureTreeContentProvider());
 103                 viewer.setLabelProvider(new FeatureTreeLabelProvider());
 104
 105                 viewer.addSelectionChangedListener(this);
 106
 107                 text_title.addModifyListener(this);
 108                 button_add.addSelectionListener(new AddButtonSelectionListener());
 109                 button_remove.addSelectionListener(new RemoveButtonSelectionListener());
 110
 111                 List<FeatureTree> input = CdmStore.getService(IFeatureTreeService.class).list(FeatureTree.class, null, null, null, null);
 112
 113                 viewer.setInput(input);
 114                 modifyText(null);
 115                 setControl(composite);
 116         }
 117
 118         /** {@inheritDoc} */
 119         @Override
 120         public void selectionChanged(SelectionChangedEvent event) {
 121                 IStructuredSelection selection = (IStructuredSelection) event.getSelection();
 122
 123                 if(selection.size() == 1){
 124                         FeatureTree selectedFeatureTree = (FeatureTree) selection.getFirstElement();
 125                         ((FeatureTreeEditorWizard) getWizard()).setSelectedFeatureTree(selectedFeatureTree);
 126
 127                 }
 128
 129                 setPageComplete(true);
 130
 131                 button_remove.setEnabled(selection.size() >= 1);
 132         }
 133
 134         /** {@inheritDoc} */
 135         @Override
 136         public boolean canFlipToNextPage() {
 137                 return ((IStructuredSelection) viewer.getSelection()).size() == 1;
 138         }
 139
 140         /** {@inheritDoc} */
 141         @Override
 142         public void modifyText(ModifyEvent e) {
 143                 button_add.setEnabled(! text_title.getText().isEmpty());
 144         }
 145
 146         private class AddButtonSelectionListener extends SelectionAdapter {
 147                 public void widgetSelected(SelectionEvent e) {
 148                         FeatureTree featureTree = FeatureTree.NewInstance();
 149                         featureTree.setTitleCache(text_title.getText(), true);
 150
 151                         viewer.add(featureTree);
 152                         CdmStore.getService(IFeatureTreeService.class).saveOrUpdate(featureTree);
 153                         text_title.setText("");
 154                         viewer.setSelection(new StructuredSelection(featureTree));
 155
 156                 }
 157         }
 158
 159         private class RemoveButtonSelectionListener extends SelectionAdapter {
 160                 public void widgetSelected(SelectionEvent e) {
 161                         IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
 162                         for(Object element : selection.toArray()){
 163                                 viewer.remove(element);
 164
 165                                 String result = CdmStore.getService(IFeatureTreeService.class).delete((FeatureTree) element);
 166
 167                                 viewer.setSelection(new StructuredSelection(new Object[0]));
 168                         }
 169                 }
 170         }
 171 }